Definition of "ELF"

In ELF executables, there aren't a whole lot of code caves (such as in the PE format), so you are not likely to be able to shove more than just a meager amount of shellcode into existing code slots […]

2016, Ryan "elfmaster" O'Neill, Learning Linux Binary Analysis, page 97

The consequences of the massive volume of ELF to English taken as a whole, as the aggregate use of the language, is essentially a descriptive issue: what new features of English are emerging and taking hold?

2012, Anna Mauranen, Exploring ELF: Academic English Shaped by Non-native Speakers, Cambridge University Press, page 3

In the late 1990s, the ELF became notorious for setting fire to symbols of ecological destruction, including timber mills, an S.U.V. dealership and a ski resort.

2022 May 26, Matthew Wolfe, “The Rise and Fall of America’s Environmentalist Underground”, in The New York Times‎